diff --git a/lib/private/Files/Storage/Wrapper/Encryption.php b/lib/private/Files/Storage/Wrapper/Encryption.php
index baa2b7f1618e..270b27020674 100644
--- a/lib/private/Files/Storage/Wrapper/Encryption.php
+++ b/lib/private/Files/Storage/Wrapper/Encryption.php
@@ -782,8 +782,9 @@ private function copyBetweenStorage(Storage $sourceStorage, $sourceInternalPath,
 		} else {
 			try {
 				$source = $sourceStorage->fopen($sourceInternalPath, 'r');
-				if ($isRename) {
-					$this->sourcePath[$targetInternalPath] = $sourceStorage->getFullPath($sourceInternalPath);
+				if ($isRename && (count($mount) === 1)) {
+					$sourceStorageMountPoint = $mount[0]->getMountPoint();
+					$this->sourcePath[$targetInternalPath] = $sourceStorageMountPoint . '/' . $sourceInternalPath;
 				} else {
 					unset($this->sourcePath[$targetInternalPath]);
 				}